August Weather in Saint Stephen, United States

Last updated: June 24, 2025

In August, the average temperature in Saint Stephen, United States hovers around 21°C (69°F). Expect minimums of 9°C (48°F) and soaring maximums of 32°C (90°F). During this month, you can anticipate 139 mm (5.5 in) of precipitation spread over 11 days, contributing to an average humidity level of 81%.

August Temperature in Saint Stephen

In August in Saint Stephen, the average temperature is 21°C (69°F), with maximums reaching up to 32°C (90°F) and minimums dropping as low as 9°C (48°F). This makes it an ideal time for travelers to enjoy a variety of outdoor activities while packing for both warm days and cooler evenings.

August Weather in Saint Stephen: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Saint Stephen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint Stephen, August typically has an average temperature of 21°C (69°F), with highs reaching up to 32°C (90°F) and lows dropping to around 9°C (48°F).

Data source: Temperature data for Saint Stephen generated using information from the Copernicus Climate Change Service.

August Precipitation in Saint Stephen

In Saint Stephen in August, the precipitation amount is 139 mm (5.5 in) occurring over a span of 11 days.

August Precipitation Trends in Saint Stephen

The chart displays monthly precipitation patterns in Saint Stephen, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Saint Stephen, August typically receives around 139 mm (5.5 inches) of precipitation spread over approximately 11 days.

Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

August Humidity in Saint Stephen

In Saint Stephen in August humidity is 81%. With an average temperature of 21°C (69°F), this humidity feels like a warm, enveloping blanket that's both heavy and sticky, making outdoor activities feel more strenuous and travel slightly uncomfortable.

August Average Humidity in Saint Stephen

This chart illustrates the average monthly humidity levels in Saint Stephen, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Saint Stephen is approximately 81%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Saint Stephen

In Saint Stephen in August, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Saint Stephen.

Maximum UV Index Levels in Saint Stephen for August

The chart shows the monthly maximum UV Index (UVI) for Saint Stephen in August, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In August, the maximum UV index in Saint Stephen typically reaches 9, which falls under the very high exposure category.

Data source: Saint Stephen August UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How August Weather in Saint Stephen Compares to Other Months

Weather in Saint Stephen varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Saint Stephen, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Saint Stephen, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-10°C (14°F)	19 mm (0.7 inches)	87%	low
February Weather	-10°C (14°F)	23 mm (0.9 inches)	90%	moderate
March Weather	-1°C (31°F)	46 mm (1.8 inches)	85%	moderate
April Weather	5°C (41°F)	78 mm (3.1 inches)	84%	high
May Weather	14°C (57°F)	86 mm (3.4 inches)	78%	very high
June Weather	21°C (70°F)	72 mm (2.8 inches)	80%	very high
July Weather	23°C (73°F)	105 mm (4.1 inches)	81%	very high
August Weather	21°C (69°F)	139 mm (5.5 inches)	81%	very high
September Weather	17°C (62°F)	115 mm (4.5 inches)	81%	high
October Weather	8°C (46°F)	104 mm (4.1 inches)	84%	moderate
November Weather	-1°C (31°F)	30 mm (1.2 inches)	88%	moderate
December Weather	-6°C (21°F)	46 mm (1.8 inches)	84%	low